JP7095483B2 - Flowmeter management device, flowmeter management method, program and recording medium - Google Patents

Description

The present disclosure relates to a flow meter management device, a flow meter management method, a program and a recording medium.

A flow meter that measures the flow rate of fluid flowing through a pipe is used to control the flow rate in a chemical plant or the like. Some such flowmeters generate a flow rate calculation value based on a preset parameter used for flow rate calculation (hereinafter referred to as "flow rate setting parameter") and a detection value related to the fluid (hereinafter referred to as "flow rate setting parameter"). For example, see Patent Document 1).

Japanese Unexamined Patent Publication No. 2009-031200

The above flow meter may be installed in a chemical plant or the like to check whether or not the preset flow rate setting parameters are appropriate before starting the flow rate measurement. In this case, it may be difficult for an operator or the like to confirm after the flow meter is installed. Therefore, in a flow meter that generates a flow rate calculation value by a flow rate calculation using a flow rate setting parameter, it is required that the validity of the flow rate setting parameter can be easily confirmed before installing the flow meter.

The purpose of this disclosure made in view of the above-mentioned problems is a flow meter management device and a flow rate that can easily confirm the validity of the flow rate setting parameter used for the flow rate calculation by the flow meter before installing the flow meter. To provide meter management methods, programs and recording media.

The flow meter management device according to some embodiments is composed of a flow rate setting parameter calculation unit that calculates a flow rate setting parameter used for flow rate calculation by a physical space flow rate meter that measures the flow rate of the fluid, and the flow rate setting parameter calculation unit. The flow rate setting parameter application unit that applies the calculated flow rate setting parameter to the cyber space flow rate meter that simulates the flow rate calculation by the physical space flow meter on the cyber space, and the flow rate setting parameter for a predetermined input signal It is provided with a flow rate calculation value generation unit that generates a flow rate calculation value by the applied flow meter on the cyber space.
According to the flow meter management device having such a configuration, the flow rate setting parameter is set to the flow meter on the cyber space before the flow meter is installed in the field or when designing the plant before purchasing the flow meter. By applying to and confirming whether or not it matches the target flow rate value, the validity of the flow rate setting parameter can be easily confirmed. In this way, if the flow rate setting parameters whose validity has been confirmed can be prepared at the time of plant design, etc., the flow rate setting parameters whose validity has been confirmed collectively in the flow meter installed in the plant during the operation of the plant can be prepared. By applying, the operation of the plant can be started smoothly in a short time.

In one embodiment, the flow meter management device further includes a connection destination switching unit for switching the application destination of the flow rate setting parameter by the flow rate setting parameter application unit between the physical space flow meter and the cyber space flow meter. When the flow rate setting parameter is applied to the physical space flow meter, the flow rate setting parameter application unit transfers the flow rate setting parameter calculated by the flow rate setting parameter calculation unit to the physical space flow meter. When applied, the flow rate calculation value generation unit generates a flow rate calculation value by the flow meter on the physical space to which the flow rate setting parameter is applied for a predetermined input signal.
With such a configuration, it is possible to confirm the validity of the flow rate setting parameter whose validity has been confirmed in cyberspace even in the flowmeter in physical space.

In one embodiment, the flow meter on the physical space is a differential pressure type flow meter, and the flow setting parameter calculation unit is a fluid property information regarding the physical properties of the fluid and a standardized calculation formula for the flow calculation. The flow rate setting parameter is calculated based on the differential pressure flow rate calculation standard information.
With such a configuration, it is possible to calculate the flow rate calculation parameters for the differential pressure type flow meter.

In one embodiment, the flow meter on the physical space is a vortex flow meter, and the flow rate setting parameter calculation unit calculates the flow rate setting parameter based on the fluid property information regarding the physical properties of the fluid.
With such a configuration, it is possible to calculate the flow rate calculation parameters for the vortex flow meter.

The flow meter management method according to some embodiments is a flow meter management method in a flow meter management device for confirming the validity of the flow rate setting parameter used for the flow rate calculation by the flow meter on the physical space for measuring the flow rate of the fluid. The step of calculating the flow rate setting parameter and the step of applying the calculated flow rate setting parameter to the cyber space flow meter simulating the flow rate calculation by the physical space flow meter on the cyber space. A step of generating a flow rate calculation value by the cyber space flow meter to which the flow rate setting parameter is applied for a predetermined input signal is included.
According to the simulation method having such a configuration, the flow rate setting parameter is applied to the flow meter in cyberspace before the flow meter is installed in the field or when designing the plant before purchasing the flow meter. Then, by confirming whether or not it matches the target flow rate value, the validity of the flow rate setting parameter can be easily confirmed. In this way, if the flow rate setting parameters whose validity has been confirmed can be prepared at the time of plant design, etc., the flow rate setting parameters whose validity has been confirmed collectively in the flow meter installed in the plant during the operation of the plant can be prepared. By applying, the operation of the plant can be started smoothly in a short time.

The program according to some embodiments is a process of calculating a flow rate setting parameter used in a flow rate calculation by a flow meter on a physical space for measuring a flow rate of a fluid, and a physical flow rate setting parameter. The process of applying the flow rate calculation by the space flow meter to the cyber space flow meter simulated on the cyber space, and the flow rate calculation value by the cyber space flow meter to which the flow setting parameter is applied to a predetermined input signal. Execute the generated process.
According to a program with such a configuration, the flow rate setting parameters are applied to the cyberspace flowmeter before the flowmeter is installed in the field or when designing the plant before purchasing the flowmeter. By confirming whether or not it matches the target flow rate value, the validity of the flow rate setting parameter can be easily confirmed. In this way, if the flow rate setting parameters whose validity has been confirmed can be prepared at the time of plant design, etc., the flow rate setting parameters whose validity has been confirmed collectively in the flow meter installed in the plant during the operation of the plant can be prepared. By applying, the operation of the plant can be started smoothly in a short time.

In the recording medium according to some embodiments, the process of calculating the flow rate setting parameter used for the flow rate calculation by the flow meter on the physical space for measuring the flow rate of the fluid and the calculated flow rate setting parameter are performed on the physical space. The process of applying the flow rate calculation by the flow meter to the cyber space flow meter simulated on the cyber space and the flow rate calculation value by the cyber space flow meter to which the flow setting parameter is applied to a predetermined input signal are generated. Record the processing and the program that causes the computer to execute.
According to the recording medium having such a configuration, the flow rate setting parameter is applied to the flow meter in cyberspace before the flow meter is installed in the field or when designing the plant before purchasing the flow meter. Then, by confirming whether or not it matches the target flow rate value, the validity of the flow rate setting parameter can be easily confirmed. In this way, if the flow rate setting parameters whose validity has been confirmed can be prepared at the time of plant design, etc., the flow rate setting parameters whose validity has been confirmed collectively in the flow meter installed in the plant during the operation of the plant can be prepared. By applying, the operation of the plant can be started smoothly in a short time.

According to the flow meter management device, the flow meter management method, the program, and the recording medium according to the present disclosure, the validity of the flow rate setting parameters used for the flow rate calculation by the flow meter can be easily confirmed before the installation of the flow meter. ..

It is a figure which shows the schematic structure of the flow meter management apparatus which concerns on one Embodiment of this disclosure. It is a flowchart for demonstrating the flow meter management method in the flow meter management apparatus shown in FIG. It is a figure which shows the mounting example of the flow meter management apparatus shown in FIG. It is a figure which shows the schematic structure of the conventional flow meter management apparatus.

Hereinafter, embodiments for carrying out the present disclosure will be described with reference to the drawings. In each figure, the same reference numerals indicate the same or equivalent components.

The flow meter management device according to the present disclosure is for managing a flow meter that measures the flow rate of a fluid, which is installed in a plant or the like. For example, the flow meter management device according to the present embodiment is set in the flow meter and is for confirming the validity of the flow rate setting parameter used for the flow rate calculation by the flow meter. Further, the flow meter management device according to the present embodiment may monitor the flow rate calculated value by, for example, a flow meter. The above-mentioned flow meter includes, for example, a differential pressure type flow meter that calculates a flow rate from a pressure difference (differential pressure) between the upstream side and the downstream side of a throttle mechanism such as an orifice provided in a fluid flow path. There is a vortex flow meter that calculates the flow rate by detecting the Kalman vortex generated in the fluid. The plants on which the above-mentioned flow meters are installed are, for example, industrial plants such as chemical plants, plants that manage and control wells such as gas fields and oil fields or their surroundings, and plants that manage and control power generation such as hydropower, thermal power, and nuclear power. , Plants that manage and control energy harvesting such as solar power or wind power, and plants that manage and control water and sewage, dams, etc.

First, for comparison, the conventional flow meter management device 100 will be described with reference to FIG.

The flow meter management device 100 shown in FIG. 4 includes a flow rate setting parameter calculation unit 11, a flow rate setting parameter download unit 12, and a flow rate calculation value generation unit 13. The flow meter management device 100 can be realized by a computer (for example, a personal computer (PC)) including a CPU (central processing unit) and a memory for storing various programs and data. When the flow meter management device 100 is realized by a computer, the CPU reads out the program stored in the memory in the flow rate setting parameter calculation unit 11, the flow rate setting parameter download unit 12, and the flow rate calculation value generation unit 13. It is realized by executing.

The flow rate setting parameter calculation unit 11 calculates the flow rate setting parameter used for the flow rate calculation by the flow meter. Specifically, the flow rate setting parameter calculation unit 11 calculates the coefficient of the flow rate calculation approximation formula used for the flow rate calculation in the flow meter. When the flow meter is a differential pressure type flow meter, the flow rate setting parameter calculation unit 11 provides fluid property information regarding the physical properties of the fluid whose flow rate is to be measured, and the differential pressure flow rate related to a standardized calculation formula for flow rate calculation. The flow rate setting parameter is calculated based on the calculation standard information. Further, when the flow meter is a vortex flow meter, the flow rate setting parameter calculation unit 11 calculates the flow rate setting parameter based on the fluid physical property information. The flow rate setting parameter calculation unit 11 outputs the calculated flow rate setting parameter to the flow rate setting parameter download unit 12. The fluid physical property information is, for example, information indicating the density of the fluid. Further, the fluid physical property information is, for example, information indicating a type of fluid physical property. Further, the fluid physical property information is, for example, information indicating the components of the natural gas in addition to the type of the fluid physical property when the fluid is a natural gas.

The flow rate setting parameter download unit 12 uses the flow rate setting parameter calculated by the flow rate setting parameter calculation unit 11 as a flow meter on the physical space where the flow rate setting parameter is set (hereinafter referred to as “flow meter on the physical space”) 1. Download (apply) to. The physical space is a space in which an object can actually exist or a space in which a phenomenon can actually occur. That is, the flow meter 1 in the physical space refers to a flow meter that actually exists. The flow rate setting parameter download unit 12 communicates with the flow meter 1 on the physical space by offline connection, for example, and downloads the flow rate setting parameter to the flow meter 1 on the physical space.

The flow rate calculation value generation unit 13 generates a flow rate calculation value by the flow meter 1 on the physical space to which the flow rate setting parameter is applied for a predetermined input signal. Specifically, the flow rate calculation value generation unit 13 simulates inputting a predetermined input signal to the flow meter 1 on the physical space to which the flow rate setting parameter is applied. In response to the input, the flow meter 1 in the physical space simulates the flow rate calculation. The flow rate calculation value generation unit 13 outputs the flow rate calculation value (simulated flow rate calculation value) obtained by the flow rate calculation. The operator who sets the flow rate setting parameter can confirm the validity of the flow rate setting parameter based on the result of the simulation of the flow rate calculation. The validity of the flow rate setting parameter can be confirmed, for example, by comparing the flow rate calculation value obtained by simulation with the flow rate design condition (sizing sheet) calculated based on a general flow rate calculation formula. ..

The flow rate calculation value generation unit 13 may acquire the measurement results of the flow meter (physical space flow meter 1) and use the measurement results to generate various types of results related to the flow rate calculation.

In the flow meter management device 100 shown in FIG. 4, a device on the physical space (flow meter 1 on the physical space) is used for confirming the validity of the flow rate setting parameter. Therefore, the work for confirming the validity of the flow rate setting parameter cannot be performed until the flow meter is actually installed in the plant. In addition, since the flow meter is actually installed in the plant, for example, when it is necessary to directly connect the controller for setting the flow rate setting parameter and the flow meter, the worker has poor workability. It is a work in the field, and it is difficult to easily confirm the validity of the flow rate setting parameters. Further, in the flow meter management device 100 shown in FIG. 4, it is not possible to easily confirm the validity of the flow rate setting parameters at the time of designing a plant that cannot be confirmed using an actual flow meter, such as before purchasing the flow meter. Have difficulty.

There is a general-purpose flow rate calculation simulation tool. However, such a flow rate calculation simulation tool is not compatible with equipment in physical space. Further, such a flow rate calculation simulation tool is limited to the calculation of a general flow rate calculation value, and it is difficult to use it for the purpose of confirming the validity of the flow rate setting parameter. Therefore, conventionally, it is necessary to use the flow meter 1 in the physical space as in the flow meter management device 100 shown in FIG. 4, and as a result, the validity of the flow rate setting parameter can be easily confirmed before installing the flow meter. It was difficult to do.

Next, the flow meter management device 10 according to the embodiment of the present disclosure will be described. FIG. 1 is a diagram showing a schematic configuration of a flow meter management device 10 according to the present embodiment. In FIG. 1, the same reference numerals are given to the configurations similar to those in FIG. 4, and the description thereof will be omitted.

The flow meter management device 10 shown in FIG. 1 includes a flow rate setting parameter calculation unit 11, a flow rate setting parameter download unit 21, a connection destination switching unit 22, a cyberspace flow meter 23, and a flow rate calculation value generation unit 24. Be prepared. That is, the flow meter management device 10 according to the present embodiment has changed the flow rate setting parameter download unit 12 to the flow rate setting parameter download unit 21 as compared with the flow meter management device 100 shown in FIG. 4, and the flow rate calculation value. The difference is that the generation unit 13 is changed to the flow rate calculation value generation unit 24 and the connection destination switching unit 22 and the cyber space flow meter 23 are added. In the flow meter management device 10, the flow rate setting parameter download unit 21 functions as a flow rate setting parameter application unit.

The flow meter management device 10 can be realized by a computer including a CPU and a memory for storing various programs and data. When the flow meter management device 10 is realized by a computer, the flow rate setting parameter calculation unit 11, the flow rate setting parameter download unit 21, the connection destination switching unit 22, the cyber space flow meter 23, and the flow rate calculation value generation unit 24 are realized. Is realized by the CPU reading and executing the program (flow rate setting software) according to the embodiment of the present disclosure stored in the memory.

The flow rate setting parameter download unit 21 simulates the flow rate calculation by the flow rate meter 1 on the physical space or the flow rate meter 1 on the physical space on the cyber space with the flow rate setting parameter calculated by the flow rate setting parameter calculation unit 11. Download (apply) to the upper flow meter 23. The cyber space is a virtual space on a computer. Therefore, the flow meter 23 in cyberspace is a flow meter virtually constructed on a computer on which the flow meter management device 10 is mounted.

The connection destination switching unit 22 switches the connection destination of the flow rate setting parameter download unit 21 between the physical space flow meter 1 and the cyber space flow meter 23. By connecting to the flow rate setting parameter download unit 21, the flow rate setting parameter is downloaded (applied) to the physical space flow meter 1 or the cyber space flow meter 23 to which the connection destination is connected. That is, the connection destination switching unit 22 switches the application destination of the flow rate setting parameter by the flow rate setting parameter download unit 21 between the physical space flow meter 1 and the cyber space flow meter 23. When the application destination of the flow rate setting parameter is switched to the flow meter 1 on the physical space, the flow rate setting parameter download unit 21 applies the flow rate setting parameter to the flow meter 1 on the physical space, and the application destination of the flow rate setting parameter is on the cyber space. When switched to the flow meter 23, it is applied to the flow meter 23 on the cyber space. The connection destination switching unit 22 switches the connection destination based on the instruction of the operator.

The flow rate calculation value generation unit 24 generates a flow rate calculation value by the flow meter 1 on the physical space or the flow meter 23 on the cyber space to which the flow rate setting parameter is applied to the predetermined input signal. Specifically, the flow rate calculation value generation unit 24 simulatedly inputs a predetermined input signal to the cyber space flow meter 23 to which the flow rate setting parameter is applied, and the flow rate constructed in the cyber space flow meter 23. The flow rate calculation is simulated by the calculation formula, and the flow rate calculation value calculated by the simulation is generated. Further, the flow rate calculation value generation unit 24 generates the flow rate calculation value in the same manner as the flow rate calculation value generation unit 13 described with reference to FIG. When the flow meter 1 is a differential pressure type flow meter on the physical space, the flow rate calculation value generation unit 24 inputs differential pressure, static pressure, and temperature as input signals, and simulates the flow rate calculation. Further, when the flow meter 1 on the physical space is a vortex flow meter, the flow rate calculation value generation unit 24 inputs a volume flow rate as an input signal and simulates the flow rate calculation.

The operator who sets the flow rate setting parameter can confirm the validity of the flow rate setting parameter based on this simulation result. The validity of the flow rate setting parameter can be confirmed, for example, by comparing the flow rate calculation value obtained by simulation with the flow rate design condition (sizing sheet) calculated based on a general flow rate calculation formula. .. Then, the worker applies the flow rate setting parameter whose validity has been confirmed in cyber space to the flow meter 1 in physical space to confirm the operation, and performs a simulation to perform the flow rate setting parameter in physical space as well. The validity of can be confirmed. The flow rate calculation value generation unit 24 may acquire the measurement results of the flow meter (flow meter 1 on the physical space) and use the measurement results to generate various types of results related to the flow rate calculation.

As described above, the flow meter 23 in cyberspace is a flow meter virtually constructed on a computer on which the flow meter management device 10 is mounted. Therefore, to confirm the validity of the flow rate setting parameter in the cyber space, a computer equipped with the flow meter management device 10 was installed instead of the site where the flow meter (flow meter 1 in the physical space) was installed. It can be done in an office with a good working environment. In addition, it is no longer necessary to check the validity of the flow rate setting parameters in the limited time after the flow meter is installed in the plant and before the plant starts operating, and any flow meter can be installed before it is installed in the plant. At the stage, work can be performed to confirm the validity of the flow rate setting parameters. Therefore, the work time using the actual flow meter can be reduced, and the work before the operation of the plant can be significantly reduced.

Further, according to the flow meter management device 10, in order to confirm the validity of the flow rate setting parameters by the flow rate calculation using the flow meter 23 on the cyberspace, the pipe size, the fluid condition, etc. are checked at the design stage before the construction of the plant. It is possible to confirm the design of the plant due to changes in the application conditions. Therefore, the design work of the plant can be made more efficient.

Further, according to the flow meter management device 10, the result of the flow rate calculation by the cyber space flow meter 23 and the result of the flow rate calculation by the physical space flow meter 1 are compared with each other to physically perform the flow rate calculation at the time of plant operation or the like. It is possible to diagnose the failure of equipment in space. Normally, the reference flow rate is confirmed only at the flow rate value at a specific point. On the other hand, in the flow meter management device 10 according to the present embodiment, reference data under various flow conditions can be obtained from the flow rate calculation by the cyber space flow meter 23, so that detailed diagnosis such as failure prediction diagnosis can be performed. It will be possible. Therefore, the operating rate of the plant can be improved.

Next, the flow meter management method in the flow meter management device 10 according to the present embodiment will be described with reference to the flowchart shown in FIG. In addition, in FIG. 2, the flow meter management method using the flow meter 23 in cyberspace will be described. Therefore, the connection destination of the flow rate setting parameter download unit 21 will be described as the cyberspace flow meter 23.

First, the flow rate setting parameter calculation unit 11 calculates the flow rate setting parameter (step S11).

Next, the flow rate setting parameter download unit 21 downloads (applies) the flow rate setting parameter calculated by the flow rate setting parameter calculation unit 11 to the cyberspace flow meter 23 (step S12).

Next, the flow rate calculation value generation unit 24 generates a flow rate calculation value by the cyber space flow meter 23 to which the flow rate setting parameter is applied for a predetermined input signal (step S13).

That is, in the flow meter management method in the flow meter management device 10 according to the present embodiment, the flow rate setting parameter calculation unit 11 calculates the flow rate setting parameter, and the flow rate setting parameter download unit 21 calculates the flow rate setting parameter. Is applied to the cyber space flow meter 23, and the flow calculation value generation unit 24 generates a flow calculation value by the cyber space flow meter 23 to which the flow setting parameter is applied for a predetermined input signal. including.

As described above, the flow meter management device 10 is realized on a computer by the CPU reading and executing the flow rate setting software, which is the program according to the embodiment of the present disclosure. Here, the flow rate setting software may be constructed as a DTM (Device Type Manager) using FDT (Field Device Tool) technology. FDT is an open interface specification for exchanging data between a device management device and a field device such as a flow meter regardless of the type of communication bus and communication protocol. Further, the DTM refers to an application that actually communicates, sets, diagnoses, etc. with a field device.

By doing so, the flow meter management device 10 according to the present embodiment can be used even on a multi-vendor system in which products of various vendors are combined.

Further, the client-server function specified in FDT 2.0 (2012) may be used to realize the function of the flow rate setting software on the server device. That is, the flow meter management device 10 according to the present embodiment may be mounted on the server device 3 on the network 2 as shown in FIG. In this case, the flow meter management device 10 receives input of information necessary for confirming the validity of the flow rate setting parameter from the client terminal 4 which is connected via a network and has a client function, and is based on the input information. , Check the validity of the flow rate setting parameters. Since the details of FDT 2.0 are described in the following references, for example, detailed description thereof will be omitted.
Reference 1: "Flow Configuration Software implemented on FDT2 standard", Akio Ito, Chan Sin Wai, Proceedings of the SICE Annual Conference 2017, September 19-22, 2017

By doing so, if the client function is implemented in a mobile terminal such as a smartphone, the validity of the flow rate setting parameter can be confirmed at any place. In addition, by utilizing the server function specified in FDT 2.0 described above and the linking function of OPC UA (Object Linking and Embedding for Process Control Unified Architecture), the flow rate calculation value and physics by the cyber space flow meter 23 By integrating the flow rate calculation value of the spatial flow meter 1 into a higher host such as the cloud or the edge, it is possible to make a detailed diagnosis of the flow meter using AI (Artificial Intelligence) on the upper host side. As a result, the operating rate of the plant can be improved. OPC UA is a data exchange standard that enables data exchange between multiple vendors or between different operating systems (OS).

Further, when the flow meter management device 10 according to the present embodiment is configured on the server device 3, the flow rate calculation value generation unit 24 acquires the measurement result of the flow meter (flow meter 1 on the physical space) and the measurement result. May be used to generate many different results for flow rate calculations. Various results related to flow rate calculation include, for example, instantaneous flow rate value, integrated flow rate value, integrated flow rate value for a certain period in the past, differential pressure / static pressure / temperature of the process, orifice diameter, discharge coefficient, expansion correction coefficient, etc. Reynolds number, density, compression coefficient and viscosity. Further, the flow rate calculation value generation unit 24 may record various kinds of results related to the flow rate calculation together with the generation time. In this case, the flow rate calculation value generation unit 24 records, for example, based on a trigger at a fixed cycle or an arbitrary timing.

Further, the flow meter management device 10 according to the present embodiment may generate a log in which various types of results related to the flow rate calculation generated by the flow rate calculation value generation unit 24 are recorded in chronological order. Further, the flow meter management device 10 according to the present embodiment may enable access to the above log via the network 2 in response to a request from the client terminal 4 having a client function.

In recent years, for example, flow rate transactions for fluids such as natural gas have been carried out, and in such flow rate transactions, various results related to the above-mentioned flow rate calculation can be retained for a long period of time and can be accessed as appropriate. Is required.

Conventionally, the result of the flow rate calculation by the flow meter is generally taken into a stand-alone PC and used for checking the operation of the device. In such management use, it was not possible to cope with the use of flow rate trading. For the use of flow rate transactions, it was necessary to send various types of results related to flow rate calculation captured in a stand-alone PC to a higher-level device via a network. On the other hand, when a controller such as PLC (Programmable Logic Controller) or RTU (Remote Terminal Unit) that controls field equipment such as a flow meter is used for trading purposes, the controller retains various results related to flow calculation for a long period of time. , It is also possible to access as appropriate. However, providing such a function in the controller leads to an increase in instrumentation cost.

Therefore, as described above, the flow meter management device 10 configured on the server device 3 holds various types of results related to the flow rate calculation and makes them accessible as appropriate, thereby suppressing an increase in instrumentation cost. It is possible to hold and refer to many kinds of results related to flow rate calculation. In addition, since it can be accessed by a mobile terminal such as a smartphone that has a client function, it is possible to refer to various results related to flow rate calculation via the mobile terminal even at work sites, etc., improving work efficiency. Can be improved.

As described above, in the present embodiment, the flow meter management device 10 uses the flow rate setting parameter calculation unit 11 for calculating the flow rate setting parameter and the flow rate setting parameter calculated by the flow rate setting parameter calculation unit 11 for the flow rate meter on the physical space. Flow rate calculation by the flow rate setting parameter download unit 21 that applies the flow rate calculation by 1 to the cyber space flow meter 23 that is simulated on the cyber space, and the cyber space flow meter 23 to which the flow setting parameter is applied to a predetermined input signal. A flow rate calculation value generation unit 24 for generating a value is provided.

In this way, by generating the flow rate calculation value by the cyber space flow meter 23 to which the flow rate setting parameter is applied, before the flow meter is installed at the site and at the time of designing the plant before purchasing the flow meter. By applying the flow rate setting parameter to the cyber space flow meter and checking whether it matches the target flow rate value, the validity of the flow rate setting parameter can be easily confirmed. In this way, if the flow rate setting parameters whose validity has been confirmed can be prepared at the time of plant design, etc., the flow rate setting parameters whose validity has been confirmed collectively in the flow meter installed in the plant during the operation of the plant can be prepared. By applying, the operation of the plant can be started smoothly in a short time. The validity of the flow rate setting parameters should be confirmed, for example, by comparing the flow rate calculation value obtained by simulation with the flow rate design condition (sizing sheet) calculated based on a general flow rate calculation formula. Can be done. In addition, it is no longer necessary to check the validity of the flow rate setting parameters in the limited time after the flow meter is installed in the plant and before the plant starts operating, and any flow meter can be installed before it is installed in the plant. At the stage, work can be performed to confirm the validity of the flow rate setting parameters. Therefore, the validity of the flow rate setting parameter used for the flow rate calculation by the flow meter can be easily confirmed before the flow meter is installed.

In general, the flow rate setting parameter is different from other general-purpose parameters, and it is confirmed whether or not the flow rate calculation value in the state where the flow rate setting parameter is set is correct only by the operator checking the parameter value. Is difficult. Hereinafter, the reason will be described by taking the case where the flow meter is a differential pressure type flow meter as an example.

The flow rate calculation formula of the differential pressure type flow meter is expressed by the following formula (1).

・・・式（１）

... Equation (1)

Here, Qm is the mass flow rate, C is the outflow coefficient, β is the throttle diameter ratio, ε is the gas expansion correction coefficient, d is the throttle diameter, ΔP is the differential pressure, and ρ is the differential pressure. The density of the fluid.

General-purpose parameters include units and ranges. Whether or not such general-purpose parameters are as set for the field equipment (flow meter) at the time of plant design can be confirmed by the operator by visually observing the parameters.

On the other hand, the flow rate setting parameters as described above are parameters such as the type of flow rate calculation standard, the dimensions and materials of the flow rate primary equipment and piping, and in the above-mentioned equation (1), the flow differential pressure ΔP.
Discharge coefficient C, throttle diameter ratio β, gas expansion correction coefficient ε, throttle diameter d, and fluid density ρ.

Whether or not such a flow rate setting parameter is set according to the field equipment (flow meter) at the time of designing the plant can be confirmed by the operator by visually observing the parameter. However, it is not possible for the operator to visually confirm whether the value of the flow rate of the fluid flowing through the piping of the actual plant is as designed. In order to confirm whether the flow rate value of the fluid flowing through the piping of the plant is as designed, it is necessary to give a simulated signal with a flow meter, perform a flow rate calculation based on the flow rate setting parameter, and calculate the flow rate calculation value. In this case, conventionally, it has been confirmed whether or not the flow rate setting parameter based on the design is appropriate by performing the flow rate calculation using an actual flow rate meter (flow meter 1 on the physical space). Therefore, an actual flow meter is required, and after designing the plant, purchasing the actual flow meter, etc., and acquiring it, the validity of the flow setting parameters is confirmed within the limited time before the operation of the plant. The need was met. In this case, there is a risk that the operation of the plant is delayed in order to secure the time for confirming the validity of the flow rate setting parameter. In addition, if the validity of the flow rate setting parameters can be confirmed remotely, it is not necessary to perform work at the site where workability is poor, but it is confirmed in a limited time after the acquisition of the flow meter and before the operation of the plant. There is a constraint that you need to do.

On the other hand, as in the present disclosure, by generating the flow rate calculation value using the cyberspace flow meter 23, the above-mentioned time and place restrictions are eliminated, and the efficiency of work from plant design to operation is improved. Can be planned.

Although the flow meter management device 10 has been described above, a computer can be suitably used in order to function as the flow meter management device 10. Such a computer stores a program describing the processing contents that realize each function of the flow meter management device 10 in the storage unit of the computer, and the CPU of the computer reads and executes this program. It can be realized.

The program may also be recorded on a computer-readable recording medium. Using such a recording medium, it is possible to install the program on the computer. Here, the recording medium on which the program is recorded may be a non-transient recording medium. The non-transient recording medium is not particularly limited, but may be, for example, a recording medium such as a CD-ROM or a DVD-ROM.

The present disclosure is not limited to the configuration specified in each of the above-described embodiments, and various modifications can be made without departing from the gist of the disclosure described in the claims. For example, the functions included in each component can be rearranged so as not to be logically inconsistent, and a plurality of components can be combined or divided into one.

1 Flow meter (flow meter on physical space)
2 Network 3 Server device 4 Client terminal 10 Flow meter management device 11 Flow rate setting parameter calculation unit 12, 21 Flow rate setting parameter download unit 13, 24 Flow rate calculation value generation unit 22 Connection destination switching unit 23 Cyber space flow meter

Claims (8)

A flow rate setting parameter calculation unit that calculates the flow rate setting parameters used for flow rate calculation by a physical space flow meter that measures the flow rate of fluid, and a flow rate setting parameter calculation unit.
A flow rate setting parameter application unit that applies the flow rate setting parameter calculated by the flow rate setting parameter calculation unit to the flow rate meter on the cyber space that simulates the flow rate calculation by the flow meter on the physical space on the cyber space.
A flow rate calculation value generation unit that generates a flow rate calculation value by the cyber space flow meter to which the flow rate setting parameter is applied to a predetermined input signal is provided .
The flow rate calculation value generation unit generates various kinds of results related to the flow rate calculation by using the flow rate calculation value by the flow meter on the physical space, and stores the various kinds of results related to the generated flow rate calculation together with the generation time. A flow meter management device characterized by In the flow meter management device according to claim 1,
The flow rate setting parameter application unit further includes a connection destination switching unit that switches the application destination of the flow rate setting parameter by the flow rate setting parameter application unit between the physical space flow meter and the cyber space flow rate meter. When the application destination of the parameter is switched to the flow rate meter on the physical space, the flow rate setting parameter calculated by the flow rate setting parameter calculation unit is applied to the flow meter on the physical space.
The flow meter management device is characterized in that the flow rate calculation value generation unit generates a flow rate calculation value by the flow meter on the physical space to which the flow rate setting parameter is applied to a predetermined input signal. In the flow meter management device according to claim 1 or 2.
The flow meter on the physical space is a differential pressure type flow meter.
The flow rate setting parameter calculation unit calculates the flow rate setting parameter based on the fluid property information regarding the physical properties of the fluid and the differential pressure flow rate calculation standard information regarding the standardized calculation formula for the flow rate calculation. A characteristic flow meter management device. In the flow meter management device according to claim 1 or 2.
The flow meter on the physical space is a vortex flow meter, and is
The flow meter management device is characterized in that the flow rate setting parameter calculation unit calculates the flow rate setting parameter based on the fluid property information regarding the physical property of the fluid. It is a flow meter management method in a flow meter management device for confirming the validity of the flow rate setting parameter used for flow rate calculation by a flow meter on the physical space that measures the flow rate of a fluid.
The step of calculating the flow rate setting parameter and
A step of applying the calculated flow rate setting parameter to the cyber space flow meter simulating the flow calculation by the physical space flow meter on the cyber space.
A step of generating a flow rate calculated value by the cyber space flow meter to which the flow rate setting parameter is applied for a predetermined input signal, and
It includes a step of generating various kinds of results regarding the flow rate calculation by using the flow rate calculation value by the flow meter on the physical space and storing the various kinds of results regarding the generated flow rate calculation together with the generation time . A characteristic flow meter management method. On the computer
The process of calculating the flow rate setting parameters used for flow rate calculation by the physical space flow meter that measures the flow rate of the fluid, and
The process of applying the calculated flow rate setting parameter to the cyber space flow meter simulating the flow calculation by the physical space flow meter on the cyber space.
Processing to generate a flow rate calculation value by the cyberspace flow meter to which the flow rate setting parameter is applied for a predetermined input signal, and
Using the flow rate calculation value by the flow meter on the physical space, a process of generating various kinds of results related to the flow rate calculation and storing the various kinds of results related to the generated flow rate calculation together with the generation time is executed. A program featuring. The process of calculating the flow rate setting parameter used for the flow rate calculation by the physical space flow meter that measures the flow rate of the fluid, and the calculated flow rate setting parameter are simulated in the cyber space by the flow rate calculation by the physical space flow meter. Processing applied to the cyber space flow meter, processing to generate a flow rate calculation value by the cyber space flow meter to which the flow setting parameter is applied, and flow rate by the physical space flow meter for a predetermined input signal. A recording medium that records a program that causes a computer to generate various types of results related to the flow rate calculation using the calculated values and store the various types of results related to the generated flow rate calculation together with the generation time . In the flow meter management device according to claim 1,
The flow meter management device is mounted on the server device and is mounted on the server device.
A flow meter management device in which various types of results regarding the stored flow rate calculation and generation times of the various types of results can be accessed from a client terminal connected to the server device via a network.

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